Re: [PATCH v8 2/7] iommu/arm-smmu-v3: support ops registration for CDX bus

[Nipun Gupta]

On 2/21/2023 5:26 PM, Robin Murphy wrote:
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>
>
> On 2023-02-17 13:28, Nipun Gupta wrote:
>
> Nit: subject should be "iommu: Support ops registration for CDX bus",
> since this is no longer a driver-specific thing.

Sure, will update the subject in the next spin.

Thanks,
Nipun

> Thanks,
> Robin.
>
> > With new CDX bus supported for AMD FPGA devices on ARM
> > platform, the bus requires registration for the SMMU v3
> > driver.
> >
> > Signed-off-by: Nipun Gupta <nipun.gupta@xxxxxxx>
> > Tested-by: Nikhil Agarwal <nikhil.agarwal@xxxxxxx>
> > ---
> >   drivers/iommu/iommu.c | 4 ++++
> >   1 file changed, 4 insertions(+)
> >
> > diff --git a/drivers/iommu/iommu.c b/drivers/iommu/iommu.c
> > index 1fbe53354532..c2ff7754a4b3 100644
> > --- a/drivers/iommu/iommu.c
> > +++ b/drivers/iommu/iommu.c
> > @@ -28,6 +28,7 @@
> >   #include <linux/fsl/mc.h>
> >   #include <linux/module.h>
> >   #include <linux/cc_platform.h>
> > +#include <linux/cdx/cdx_bus.h>
> >   #include <trace/events/iommu.h>
> >   #include <linux/sched/mm.h>
> >   #include <linux/msi.h>
> > @@ -129,6 +130,9 @@ static struct bus_type * const iommu_buses[] = {
> >   #ifdef CONFIG_TEGRA_HOST1X_CONTEXT_BUS
> >       &host1x_context_device_bus_type,
> >   #endif
> > +#ifdef CONFIG_CDX_BUS
> > +     &cdx_bus_type,
> > +#endif
> >   };
> >
> >   /*